Merck

695041

Sigma-Aldrich

硝酸

ACS reagent, ≥90.0%

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Empirical Formula (Hill Notation):
HNO3
CAS号:
分子量:
63.01
EC 号:
MDL编号:
eCl@ss:
38060304
PubChem化学物质编号:

等级

ACS reagent

质量水平

蒸汽密度

1.3 (vs air)

蒸汽压

6.6 mmHg ( 20 °C)
8 mmHg ( 20 °C)

描述

dilution test passes test

检测方案

≥90.0%

形式

liquid

灼烧残渣

≤0.002%

颜色

colorless to yellow

bp

120.5 °C (lit.)

密度

1.48 g/mL at 20 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.7 ppm
dissolved oxides: ≤0.1% (as N2O3)
sulfate (SO42-): ≤5 ppm

痕量阳离子

As: ≤0.3 ppm
Fe: ≤2 ppm
heavy metals (as Pb): ≤5 ppm

SMILES string

O[N+]([O-])=O

InChI

1S/HNO3/c2-1(3)4/h(H,2,3,4)

InChI key

GRYLNZFGIOXLOG-UHFFFAOYSA-N

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43807384378309079
Nitric acid ACS reagent, ≥90.0%

Sigma-Aldrich

695041

硝酸

Nitric acid ACS reagent, 70%

Sigma-Aldrich

438073

硝酸

Nitric acid puriss. p.a., 65.0-67.0%

Sigma-Aldrich

84378

硝酸

Nitric acid red, fuming, HNO3 >90 %

Sigma-Aldrich

309079

硝酸

vapor density

1.3 (vs air)

vapor density

-

vapor density

-

vapor density

-

vapor pressure

6.6 mmHg ( 20 °C), 8 mmHg ( 20 °C)

vapor pressure

8 mmHg ( 20 °C)

vapor pressure

8 mmHg ( 20 °C)

vapor pressure

8 mmHg ( 20 °C)

assay

≥90.0%

assay

68.0-70.0% (ACS specification), 70%

assay

65.0-67.0%

assay

5.0-10.0% (% N2O3, titration)

form

liquid

form

liquid

form

liquid

form

liquid

bp

120.5 °C (lit.)

bp

120.5 °C (lit.)

bp

120.5 °C (lit.)

bp

120.5 °C (lit.)

一般描述

硝酸常用作有机分子硝化和氧化的主要试剂。在有机合成中,它还被用作执行氧化转化的强氧化剂。此外,硝酸还用于生产聚氨酯和聚酰胺的中间体。

应用

硝酸可用作:
  • 氧化剂,使用硫酸将羧酸基接枝到CNT(碳纳米管)上,从而产生CNT-COOH。
  • 在燃烧法,将溶液的pH值调整为7。它是制备混合磁铁矿-赤铁矿纳米颗粒的步骤之一。
  • 作为硝化剂,与硫酸合成8-硝基-7-羟基-4-甲基香豆素和6-硝基-7-羟基-4-甲基香豆素。

警示用语:

Danger

危险分类

Acute Tox. 3 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1A

补充剂危害

储存分类代码

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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